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Date:	Fri, 11 Jun 2010 16:57:55 -0500
From:	James Eric Pruitt <eric DOT pruitt AT gmail DOT com>
To:	Marco Atzeri <marco_atzeri AT yahoo DOT it>, cygwin AT cygwin DOT com
Subject:	Re: Image fuction bug in Octave-3.2 in Vista x86
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On Fri, Jun 11, 2010 at 09:51:42PM +0000, Marco Atzeri wrote:
> --- Ven 11/6/10, James Eric Pruitt  ha scritto:
> 
> > +0000, Marco Atzeri wrote:
> > > --- Ven 11/6/10, James Eric Pruitt  ha scritto:
> > > 
> > > > The cygcheck output is now attached.
> > > > 
> > > > On Thu, Jun 10, 2010 at 07:11:31PM -0500, James
> > Eric Pruitt
> > > > wrote:
> > > > > When using octave in Windows Vista with a
> > fresh
> > > > install of Cygwin 1.7.5, 
> > > > > executing the image function causes octave
> > to crash
> > > > immediately and 
> > > 
> > > James,
> > > the cygcheck says that you are using octave-3.2.3-1
> > > while the latest is octave 3.2.4-2, the one I tested.
> > 
> > > (in few days we will have also the 0ctave 3.2.4-3)
> > > 
> > > Could you please update and check again.
> > 
> > I updated and the problem persists. I have attached the
> > octave dump, a 
> > sample output of the terminal and cygcheck.out. I do not
> > have X11 
> > installed on this installation of cygwin but even on the
> > Windows XP 
> > virtual machine, this crash does not occur regardless of
> > whether X11 is 
> > installed.
> > 
> > Eric
> 
> Eric,
> I am a bit puzzled.
> 
> image is a test function to plot a test image on the 
> X11 screen using gnuplot.
> 

It's not just for testing. I was using it in this cellular automata 
physics simulator. Please excuse the messy code; 
http://pastebin.com/17KXGzZa . On my Debian Linux installation of Octave 
and gnuplot, the script runs fine although right now it runs nearly 
instantly as I don't have any timer breaks.

> Octave can work without the Xserver, but you can not plot
> without it running.
> 
> Without X11, I have on my XP :
>  
> octave:1> image
> warning: X11 DISPLAY environment variable not set
> warning: loadimage is obsolete and will be removed from a future version of Octave; please use imread instead
> 
> Marco
> 

As mentioned before, I get the error in terminal.txt (have you looked 
at it yet?) or  something similar regardless of whether or not I have X11
installed and  running or not. I've gone through 4 clean Cygwin 
installations trying to  figure out what the problem was and I just got 
tired of re-downloading things. If you remove X11 from your cygwin 
installation, you will see that your terminal output still does not 
produce a crash.

Yes, you are correct I do not have X11 installed (right now) but that 
shouldn't make octave crash and produce a dump when running the image 
function.

Eric

> 
> 
> 
> 
> 
> 
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